• Introduction of material failure: Strength vs. Toughness ; ductile/brittle behavior ; macroscopic tests ; stress intensity factor ; fracture toughness ; Critical crack size • Void germination, growth, coalescence theories: behavior laws, second phase effects, influence of the triaxality, implementation behavior laws • Fatigue, cyclic loading: Paris law and propagation, Wöhler curve, Enhancing resistance to fatigue • Sstatistical approach: cumulative probability of failure, Weibull, impact of initials defects • Select materials and processes to propose an alternative or innovative solution for a simple mechanical design problem (apply a procedure of material and process selection). • Macroscopic tests, standards, visualization and identification of fracture surfaces (ductile/brittle) • Application with Xray Computed Tomography: principal, 3D reconstruction, data post treatment, possibilities and limitations